CVE-2026-7608 — TRENDnet TEW-821DAP Command Injection

title: CVE-2026-7608 TRENDnet TEW-821DAP Command Injection via tools_diagnostic
id: scw-2026-05-02-ai-1
status: experimental
level: critical
description: |
  Detects attempts to exploit CVE-2026-7608 in TRENDnet TEW-821DAP devices by targeting the tools_diagnostic function. The rule looks for requests to '/tools_diagnostic.cgi' that include common command injection payloads used for network diagnostics or system information gathering, indicating an attempt to execute arbitrary commands.
author: SCW Feed Engine (AI-generated)
date: 2026-05-02
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-7608/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/tools_diagnostic.cgi'
      cs-uri-query|contains:
          - 'ping'
          - 'traceroute'
          - 'nslookup'
          - 'netstat'
          - 'ifconfig'
          - 'route'
          - 'iptables'
          - 'cat /etc/passwd'
          - 'uname -a'
      condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse